/* THESE ARE SOME HELPER FUNCTIONS TO GRAB THE IMAGE
   AND SUMM THE NUMBER OF BYTES FROM THE ROW TO PRINT OUT THE SUM
   USED FOR INITIAL TESTING ONLY
*/


void sumup(){
  int i, result = 0;
  
  /* set the control register to live video */
  writeb(0x91, ps_data.mem + 0x2000);
  wmb();
  mdelay(500);
  
  /* set the control register to read from te 0th line */
  writeb(0, ps_data.mem + 0x2002);
  mb();
  
  for(i=0;i<511;i++){
    result += readb(ps_data.mem + i);
    mb();
  }
  printk(KERN_CRIT "sum : %i\n",result);
}